Five-axis linkage device for parts with complex curved surfaces
By designing an adjustable five-axis linkage positioning component, the problem that a single-size cage cannot adapt to curved surface parts of different sizes is solved, achieving higher processing stability and flexibility, and reducing costs.
Patent Information
- Application Number
- CN202520424663.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
When machining curved parts, existing five-axis linkage machine tools cannot accommodate curved parts of different sizes due to the inability of single-size curved part holders, resulting in insufficient machining stability and limited flexibility.
Design an adjustable five-axis linkage device. By setting positioning components, including a linear lead screw module, a linear moving platform, a positioning seat, a guide rod, a sliding shaft seat, a clamping block, and a clamping notch, stable clamping of curved surface parts of different sizes can be achieved.
It improves the machining stability and flexibility of curved parts, reduces the time for changing cages, and lowers machining costs.
Smart Images
Figure CN223933093U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of curved surface parts processing, specifically relating to a five-axis linkage device for complex curved surface parts. Background Technology
[0002] A five-axis CNC machine tool is a high-end machine tool capable of simultaneously controlling five motion axes for coordinated machining. Compared to traditional three-axis machine tools, it can perform machining of more complex geometries, making it particularly suitable for workpieces with complex curved surfaces or high precision requirements. Five-axis CNC machine tools are one of the core pieces of equipment in modern manufacturing, especially in the field of high-end equipment manufacturing, where they can meet the high-precision machining needs of complex parts. Despite their higher cost, their advantages in efficiency and machining capabilities make them an essential tool in high-precision industries.
[0003] Curved surface components refer to mechanical parts or structural components with complex curved surface shapes. Unlike planar parts, the surface of curved surface components is a three-dimensional surface generated by spatial curves. This shape usually cannot be manufactured by simple planar machining methods and is commonly found in high-precision and high-complexity manufacturing fields.
[0004] When machining curved parts using a five-axis CNC machine tool, existing technologies mostly rely on single-size curved part cages for positioning. However, single-size cages are only suitable for curved parts of a specific size and cannot accommodate curved parts of different sizes. Furthermore, relying solely on cages for fixing curved parts results in insufficient machining stability. In actual machining, different curved parts may have different outer diameters, inner diameters, and widths, thus requiring cages of different sizes for positioning. Using single-size cages limits machining flexibility and applicability.
[0005] Therefore, a five-axis linkage device for complex curved surface parts is proposed to solve the above problems. Utility Model Content
[0006] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a five-axis linkage device for complex curved surface parts, which has the advantages of being able to position and clamp curved surface parts of different sizes, reducing processing costs and improving processing efficiency.
[0007] To achieve the above objectives, this utility model provides a five-axis linkage device for complex curved surface parts, including a five-axis linkage machine tool;
[0008] The five-axis linkage machine tool is equipped with two sets of linear lead screw modules; a linear moving platform is slidably mounted on the two sets of linear lead screw modules, and a positioning component is provided on the linear moving platform;
[0009] The positioning component includes four positioning seats disposed on a linear motion platform. The four positioning seats are rectangular in shape. A light rod is disposed between two opposing positioning seats. A sliding shaft seat is slidably disposed on each of the two light rods. A clamping block is assembled between two adjacent sliding shaft seats. A placement seat is clamped between two opposing clamping blocks.
[0010] The five-axis linkage machine tool is equipped with a five-axis linkage machining tool holder.
[0011] As a further improvement of this utility model, clamping notches are provided on the opposite sides of the two clamping blocks, and the two clamping notches are arranged opposite each other and are triangular in shape.
[0012] As a further improvement of this utility model, the upper end face of the placement seat is detachably provided with a bearing plate by bolts, and the bearing plate has an inner conical surface along its center.
[0013] As a further improvement of this utility model, a positioning post is vertically arranged at the center of the bearing plate, and the end of the positioning post is hemispherical.
[0014] As a further improvement of this utility model, a number of rubber blocks are arranged around the center of the upper surface of the bearing plate. Each rubber block is arranged in an arc shape and is soft in general. One end of each rubber block is rotatably mounted on the bearing plate through a rotating shaft.
[0015] As a further improvement of this utility model, the linear motion platform is also provided with two guide rod motors. The output ends of the two guide rod motors are arranged opposite each other and are each connected to a motor push rod. The two motor push rods extend and connect to the side of one of the clamping blocks.
[0016] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0017] This utility model discloses a five-axis linkage device for complex curved surface parts. In practical use, through the mutual movement and cooperation of multiple components within the positioning assembly, two clamping blocks can drive the clamping notches to move in opposite directions until the two clamping notches clamp the outer surface of the rubber block. At this time, the clamping of the rubber block by the two clamping notches, combined with the rubber block surrounding the curved surface part, ultimately achieves external clamping of the curved surface part through the two clamping notches. Compared with the traditional bearing installation of curved surface part retainers, the two clamping notches with clamping movement ensure higher stability of the curved surface part during processing, while reducing the time for changing the curved surface part retainer during processing. The positioning assembly can adapt and clamp curved surface parts of various sizes, making it more practical and reducing processing costs. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the disassembled installation structure of the positioning component of this utility model;
[0020] Figure 3 This is a schematic diagram of the installation structure of the carrier plate of this utility model on the placement base;
[0021] Figure 4 This is a schematic diagram of the disassembled and assembled structure of the carrier plate and the placement seat of this utility model.
[0022] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Five-axis linkage machine tool; 2. Linear lead screw module; 21. Linear movement platform; 3. Positioning assembly; 31. Positioning seat; 32. Guide rod; 33. Sliding shaft seat; 34. Clamping block; 35. Clamping notch; 36. Guide rod motor; 37. Motor push rod; 38. Placement seat; 39. Bearing plate; 391. Inner conical surface; 392. Positioning column; 310. Rubber block; 4. Five-axis linkage machining tool holder. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example
[0025] Depend on Figure 1-4 A five-axis linkage device for complex curved surface parts is provided, including a five-axis linkage machine tool 1;
[0026] The five-axis linkage machine tool 1 is equipped with two sets of linear lead screw modules 2; a linear moving platform 21 is slidably mounted on the two sets of linear lead screw modules 2, and a positioning component 3 is mounted on the linear moving platform 21.
[0027] Positioning component 3 includes four positioning seats 31 disposed on linear motion platform 21. The four positioning seats 31 are rectangular. A guide rod 32 is disposed between two opposing positioning seats 31. A sliding shaft seat 33 is slidably disposed on each of the two guide rods 32. A clamping block 34 is assembled between two adjacent sliding shaft seats 33. A placement seat 38 is clamped between two opposing clamping blocks 34.
[0028] The five-axis linkage machine tool 1 is equipped with a five-axis linkage machining tool holder 4.
[0029] In this embodiment, in actual use, through the mutual movement and cooperation of multiple components within the positioning assembly 3, the user places the curved surface part to be processed on the carrier plate 39, and simultaneously rotates the rubber blocks 310 so that several rubber blocks 310 can surround the exterior of the curved surface part. At the same time, the motor push rod 37 radially pushes the clamping block 34, causing the two clamping blocks 34 to drive the clamping notches 35 to move in opposite directions until the two clamping notches 35 clamp the exterior of the rubber blocks 310. At this time, the clamping of the rubber blocks 310 by the two clamping notches 35, combined with the surrounding of the curved surface part by the rubber blocks 310, ultimately achieves the external clamping of the curved surface part by the two clamping notches 35. Compared with the traditional bearing installation of curved surface part holders, the two clamping notches 35 through the clamping movement can ensure higher stability of the curved surface part during processing, and at the same time reduce the time of changing the curved surface part holder during processing. The positioning assembly 3 can adapt and clamp curved surface parts of various sizes, making it more practical overall.
[0030] Furthermore, the five-axis linkage machining tool holder 4 is an existing mature device, its power connection method is existing technology, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.
[0031] Specifically, refer to Figure 1-2 Each of the two clamping blocks 34 has a clamping notch 35 on its opposite side, and the two clamping notches 35 are arranged opposite each other and are triangular in shape.
[0032] In this embodiment, in actual use, the clamping notch 35 opened on the clamping block 34, which is triangular in shape, can provide a better clamping force distribution, making the curved parts more stable during the clamping process. This helps to maintain the stability of the geometry and position of the curved parts, improves the machining accuracy, and the clamping block 34 with the triangular notch can provide a better clamping force, reduce the risk of slippage and displacement during the clamping process, help ensure the safety of the curved parts during the machining process, and avoid accidents and damage caused by unstable clamping.
[0033] Specifically, refer to Figure 3-4 The upper end face of the placement seat 38 is detachably provided with a bearing plate 39 by bolts, and an inner conical surface 391 is formed along the center of the bearing plate 39.
[0034] In this embodiment, during actual assembly, the user can place the curved parts in the support plate 39. The inner conical surface 391 is set in a conical shape, which can reduce the wear on the bottom of the curved parts during processing, thereby further improving the stability and yield of the curved parts processing.
[0035] Specifically, refer to Figure 3-4 A positioning post 392 is vertically installed at the center of the bearing plate 39, and the end of the positioning post 392 is hemispherical.
[0036] In this embodiment, considering that some curved parts have machining holes at their center, the user can place the center of the machining hole of the curved part inside the positioning post 392, so that the curved part can be initially fixed outside the positioning post 392.
[0037] Specifically, refer to Figure 3-4 Several rubber blocks 310 are arranged around the center of the upper surface of the bearing plate 39. Each rubber block 310 is arranged in an arc shape and is soft in the whole. One end of each rubber block 310 is rotatably mounted on the bearing plate 39 via a rotating shaft.
[0038] In this embodiment, when the size of the curved part is small and its diameter is smaller than that of the bearing plate 39, the user can rotate the rubber block 310 so that the rubber block 310 surrounds the outside of the curved part. At this time, when the two clamping blocks 34 move and drive the clamping notch 35 to clamp the outside of the curved part, the clamping notch 35 can work with the rubber block 310 to clamp the curved part, thus avoiding the difficulty of clamping the small curved part stably.
[0039] Furthermore, when the size of the curved component is large and larger than the size of the support plate 39, the user can disassemble several rubber blocks 310 so that the curved component can be supported on the support plate 39 alone. At this time, the user can use the clamping notch 35 to clamp and position the curved component.
[0040] Specifically, refer to Figure 1-2 The linear motion platform 21 is also equipped with two guide rod motors 36. The output ends of the two guide rod motors 36 are arranged opposite each other and are each connected to a motor push rod 37. The two motor push rods 37 extend and are connected to the side of one of the clamping blocks 34.
[0041] In this embodiment, in actual use, after the curved parts are initially fixed on the outside of the bearing plate 39, the user can connect the two guide rod motors 36 to the power supply. Then, the user drives the motor push rod 37 to move by controlling the output end of the guide rod motor 36. At this time, the motor push rod 37 pushes the clamping block 34, so that the two clamping blocks 34 can drive the clamping notch 35 to move in opposite directions until the two clamping notches 35 clamp the outside of the rubber block 310.
[0042] This utility model relates to a five-axis linkage device for complex curved surface components:
[0043] Step 1: In actual use, the user places the curved surface part to be processed on the support plate 39. The user rotates the rubber block 310 so that several rubber blocks 310 can surround the outside of the curved surface part. Then, the positioning post 392 set at the center of the support plate 39 positions the center of the curved surface part, thus achieving the initial positioning of the curved surface part.
[0044] Step 2: After the curved parts are initially fixed on the outside of the bearing plate 39, the user connects the power supply to the two guide rod motors 36 again. Then, the user drives the motor push rod 37 to move by controlling the output end of the guide rod motor 36. The motor push rod 37 pushes the clamping block 34, causing the two clamping blocks 34 to move the clamping notches 35 in opposite directions until the two clamping notches 35 clamp the outside of the rubber block 310. At this time, the clamping of the rubber block 310 by the two clamping notches 35, together with the rubber block 310 surrounding the outside of the curved parts, finally achieves the external clamping of the curved parts by the two clamping notches 35. After the curved parts are clamped on 29, the five-axis linkage machine tool 1 can be driven to process the curved parts.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A five-axis linkage device for complex curved surface parts, characterized in that, Including five-axis linkage machine tools (1); The five-axis linkage machine tool (1) is provided with two sets of linear lead screw modules (2); a linear moving platform (21) is slidably mounted on the two sets of linear lead screw modules (2), and a positioning component (3) is provided on the linear moving platform (21); The positioning component (3) includes four positioning seats (31) disposed on the linear motion platform (21). The four positioning seats (31) are rectangular in shape. A guide rod (32) is disposed between two opposing positioning seats (31). A sliding shaft seat (33) is slidably disposed on each of the two guide rods (32). A clamping block (34) is assembled between two adjacent sliding shaft seats (33). Two clamping blocks (34) are disposed opposite each other and a placement seat (38) is clamped between them. The five-axis linkage machine tool (1) is equipped with a five-axis linkage machining tool holder (4).
2. The five-axis linkage device for complex curved surface parts according to claim 1, characterized in that, Both clamping blocks (34) have clamping notches (35) on opposite sides, and the two clamping notches (35) are arranged opposite each other and are triangular in shape.
3. The five-axis linkage device for complex curved surface parts according to claim 1, characterized in that, The upper end face of the placement base (38) is detachably provided with a bearing plate (39) by bolts, and an inner conical surface (391) is formed on the bearing plate (39) along its center.
4. The five-axis linkage device for complex curved surface parts according to claim 3, characterized in that, A positioning post (392) is vertically arranged at the center of the bearing plate (39), and the end of the positioning post (392) is hemispherical.
5. The five-axis linkage device for complex curved surface parts according to claim 3, characterized in that, The upper surface of the bearing plate (39) is provided with a number of rubber blocks (310) around its center. Each rubber block (310) is arranged in an arc shape and is soft in the whole. One end of each rubber block (310) is rotatably mounted on the bearing plate (39) through a rotating shaft.
6. The five-axis linkage device for complex curved surface parts according to claim 1, characterized in that, The linear motion platform (21) is also equipped with two guide rod motors (36). The output ends of the two guide rod motors (36) are arranged opposite each other and are each connected to a motor push rod (37). The two motor push rods (37) extend and connect to the side of one of the clamping blocks (34).